I have a text whose type is string and not array, as shown below:

'[123,456],[789],[10]'

1. I want the count of number of arrays in this string(in this case it will be 3)
2. I want the number of elements in each array.

I can't use split with commas because there are commas between the numbers in that "array".

And I need to determine the length of those 3 arrays, how do I do that?

Desired result:

array: 3
length: 2,1,1

CodePudding user response：

You could add an array in the string so you end up with an actual json array.

Then you can parse the json and count them.

let value = '['   '[123,456],[789],[10]'   ']';
let json = JSON.parse(value);
json.forEach((item, i) => {
  console.log('length: '   item.length)
});
console.log(json.length   ' items')